Agastache plant named ‘ASUBL01-0’

ABSTRACT

A new and distinct cultivar of Agastache plant named ‘ASUBL01-0’ is disclosed, characterized by unique violet flowers, and increased branching. Plants are vigorous and produce densely flowering racemes. The new cultivar is an Agastache, suitable for ornamental garden purposes.

Latin name of the genus and species: Agastache hybrid.

Variety denomination: ‘ASUBL01-0’.

BACKGROUND OF THE INVENTION

The new cultivar is the result of a planned breeding program by the inventor. The crossing of two unnamed, unpatented, proprietary varieties of Agastache was made in June 2017 in Santa Paula, Calif. ‘ASUBL01-0’ was found and selected in August 2017.

The first asexual propagation of ‘ASUBL01-0’ occured in September 2018 by terminal vegetative cuttings at a nursery in Santa Paula, Calif. Subsequent propagation has shown that the unique features of this cultivar are stable and reproduced true to type in several successive generations.

SUMMARY OF THE INVENTION

The following are the unique combination of characteristics of this new cultivar when grown under standard horticultural practices in Santa Paula, Calif.:

-   -   1. Unique violet flowers.     -   2. Increased branching.     -   3. Densely flowering raceme.     -   4. Vigorous plants.

COMPARISON TO PARENT VARIETIES

‘ASUBL01-0’ is similar in most horticultural characteristics to the seed parent. Plants of the new cultivar ‘ASUBL01-0’ however differ in the following:

-   -   1. The new variety has violet flowers, while the seed parent has         pink flowers.     -   1. The new variety has more flowers per inflorescence than the         seed parent.

‘ASUBL01-0’ is similar in most horticultural characteristics to the pollen parent. Plants of the new cultivar ‘ASUBL01-0’ however differ in the following:

-   -   1. The new variety has greater plant vigor than the pollen         parent.     -   2. The new variety is a denser plant with more branches than the         pollen parent.     -   3. The new variety has darker violet flowers than the pollen         parent.

COMMERCIAL COMPARISON

‘ASUBL01-0’ can be compared to the commercial variety Agastache ‘Acapulco Blue’, unpatented. Plants of the two cultivars are similar in most horticultural characteristics. Plants of the new cultivar ‘ASUBL01-0’, however, differ in the following:

-   -   1. The new variety has deeper violet flowers than this         comparator.     -   2. The new variety is a more vigorous plant than this         comparator.     -   3. Flowers of the new variety are stacked more tightly on the         raceme than flowers of this comparator.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

‘ASUBL01-0’ is illustrated by the accompanying photographs which show the plant's form, foliage, and inflorescences. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description, which accurately describe the colors of the new hybrid Agastache.

FIG. 1 shows a plant of the new variety at about 8 months old from a rooted cutting grown in a greenhouse in Santa Paula, Calif. during Spring.

FIG. 2 shows a close-up view of the inflorescence.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of the botanical characteristics of the new and distinct hybrid Agastache known by the denomination ‘ASUBL01-0’. The detailed description was taken of an 8 month old plant in Santa Paula, Calif. in 2019. For each measurable character, ten random measurements were recorded and used to derive averages and characteristic ranges. All colors cited herein refer to The Royal Horticultural Society Colour Chart (RHS), 2007 Edition.

-   Botanical classification: Agastache ‘ASUBL01-0’.

PROPAGATION

-   Time to initiate roots: About 20 days at approximately 20 to 22° C. -   Root description: Fine, densely fibrous. -   Time to produce a rooted cutting: About 21 days at 22° C.

PLANT

-   Growth habit: Upright to outwardly arching annual. -   Pot size of plant described: 8 inch. -   Height: Approximately 35 cm to top of flowering plane, approximately     20 cm to top of foliage plane. -   Plant spread: Approximately 48 cm. -   Growth rate: Rapid. -   Branching characteristics: Free-branching. -   Length of primary lateral branches: Approximately 6 to 10 cm,     foliage section only. -   Diameter of lateral branches: Approximately 0.3 cm. -   Quantity of lateral branches: Approximately 4 to 8 branches emerge     from a pinch. -   Stem:     -   -   Color.—Near RHS Green N138A.         -   Pubescence.—Very short, dense pubescence.         -   Other stem characteristics.—Quadrangular. -   Internode length: Averages between 2.5 to 3.8 cm. -   Age of plant described: Approximately 20 weeks from 3 rooted     cuttings.

FOLIAGE

-   Leaf:     -   -   Arrangement.—Opposite.         -   Quantity.—Approximately 10 to 16 fully expanded leaves per             main branch.         -   Average Length.—Approximately 5.5 cm.         -   Average Width.—Approximately 2.5 cm.         -   Shape of blade.—Deltoid.         -   Apex.—Acute.         -   Base.—Truncate.         -   Attachment.—Stalked.         -   Margin.—Broad serrate.         -   Texture of top surface.—Velvety.         -   Texture of bottom surface.—Glabrous.         -   Color.—Young foliage upper side: Near RHS Green 137A. Young             foliage under side: Near RHS Green 138A. Mature foliage             upper side: Near RHS Green 137A. Mature foliage under side:             Near RHS Green 138B.         -   Venation.—Type: Pinnate. Venation color upper side: Near RHS             Yellow-Green 144B. Venation color under side: Near RHS Green             138B.         -   Petiole.—Average Length: Approximately 1.3 cm. Diameter:             Approximately 0.1 cm. Color: Near RHS Green 137D.

FLOWER

-   Natural flowering season: Flowering begins early Spring and     continues through late Summer. -   Inflorescence type and habit: Flowers arranged in racemes.     Individual flowers self-cleaning, calyx persistent. -   Flower Longevity on plant: Individual flowers approximately 8 days     on the plant without significant color loss or other degradation. -   Quantity of flowers: Between 16 and 28 fully opened flowers per     blooming spike, at one time; about 40 blooming spikes per plant. -   Inflorescence size:     -   -   Diameter.—Approximately 5.5 cm.         -   Height.—Average range 7 to 12.0 cm. -   Peduncle:     -   -   Length.—Average range 3.0 to 4.3 cm.         -   Diameter.—3 mm.         -   Color.—Near RHS Green 138A.         -   Orientation.—Straight.         -   Texture.—Pubescent and ridged.         -   Strength.—Strong. -   Pedicel:     -   -   Length.—Average range 2.0 to 3.0 mm.         -   Diameter.—1 mm.         -   Color.—Near RHS Green N138D.         -   Orientation.—Straight.         -   Texture.—Pubescent.         -   Strength.—Soft and flexible. -   Corolla:     -   -   Petal arrangement.—The corolla is highly fused, zygomorphic,             bilabiate. 1 upper lip with 2 lobes, and 2 smaller lateral             petals with single lobes and 2 slightly larger highly fused             lobes forming a lower lip.         -   Margin.—Entire.         -   Petal apex shape.—Obtuse.         -   Entire corolla length.—Approximately 2.8 cm.         -   Entire corolla width.—Approximately 0.7 cm.         -   Attachment aspect.—About 75° to stem.         -   Persistence.—Non-persistent.         -   Fragrance.—Very aromatic, strong somewhat minty scent. -   Petal:     -   -   Length.—Upper lip Approximately 0.4 cm, lower lip             Approximately 0.6 cm. Laterals Approximately 0.3 cm.         -   Width.—Upper lip Approximately 0.5 cm, lower lip             approximately 0.7 cm, laterals Approximately 0.3 cm.         -   Texture.—Glabrous.         -   Tube.—Length: About 1.4 cm. Width: About 0.4 cm at widest             point. -   Color: Petals.     -   -   When opening.—Interior surface: Near RHS Violet N87B flushed             N88B. Exterior surface: Near RHS Violet N87B flushed N88B.         -   Fully opened.—Interior surface: Near RHS Violet N87C flushed             N88B. Exterior surface: Near RHS Violet N87B flushed N88B.         -   Fading.—Interior surface: Near RHS Violet N88C flushed N88B.             Exterior surface: Near RHS Violet N88C flushed N88B. -   Floral tube:     -   -   When opening.—Interior surface: Near RHS Violet N87D.             Exterior surface: Near RHS Violet N87C.         -   Fully opened.—Interior surface: Near RHS Violet N87D.             Exterior surface: Near RHS Violet N87B.         -   Fading.—Interior surface: Near RHS Violet N88C flushed N88B.             Exterior surface: Near RHS Violet N88B. -   Bud:     -   -   Shape.—Curved ovoid.         -   Length.—Approximately 1.6 cm.         -   Diameter.—Approximately 0.4 cm.         -   Color.—Near RHS Violet N87B, apex N87A. -   Calyx:     -   -   Length.—Approximately 0.8 cm.         -   Diameter.—Approximately 0.3 cm.         -   Shape.—Tubular. -   Sepals:     -   -   Shape.—5 sepals fused to form a tube.         -   Apex.—Highly acute.         -   Margin.—Entire.         -   Texture.—Pubescent. Ridged.         -   Color.—Near RHS Green 138B, apex near Greyed-Purple N187B.         -   Persistence.—Persistent.

REPRODUCTIVE ORGANS

-   Stamens:     -   -   Number.—4.         -   Filament length.—Approximately 1.5 cm lower 50% fused to             petals.         -   Filament color.—Near RHS Violet N87B. -   Anthers:     -   -   Shape.—Elliptic.         -   Length.—Approximately 1 mm.         -   Color.—Near RHS Violet N87A.         -   Pollen.—Scant.         -   Pollen color.—Near RHS Greyed-Purple N187D. -   Pistil:     -   -   Number.—1.         -   Length.—Approximately 2.2 cm, not fused to floral parts.         -   Style.—Length: Approximately 2.1 cm. Color: Near RHS White             155C, uppermost section flushed near Violet N88D.         -   Stigma.—Shape: Two-parted cleft. Color: Near RHS Violet             N88B. Ovary color: Near RHS Yellow-White 158A.

OTHER CHARACTERISTICS

-   Disease and pest resistance: Not observed to be susceptible nor     resistant to normal diseases and pests of Agastache. -   Temperature tolerance: The new variety tolerates temperatures     between 0 to 40° C. -   Fruit/seed production: Not observed. 

What is claimed is:
 1. A new and distinct cultivar of Agastache plant named ‘ASUBL01-0’ as herein illustrated and described. 